Roofing strip



M. L. cAToN ROOFING STRIP Feb. 21, 1928.

Filed Jan. 25. 1925 awvwto'a Patented Feb. 21, 1928. 7 I 1,659,808UNITED STATES PATENT OFFICE.

MAURICE L. CATON, OF QUEBEC, CANADA, ASSIGNOR TO THE BARRETT COMPANY,

A CORPORATION OF NEW JERSEY.

noormo s'rnrr.

Application filed January 25, 1923. Serial No. 614,784.

This invention relates to a rocess of around the roller 11 and under areceptacle forming roofing materials and t e product 12 from whichgranular particles 13 of wearthereof. It relates more particularly tothe resisting material such as crushed stone, type of roofing materialwhich is formed slate, etc., are sprinkled thereon. As the from a baseof fibrous or felted material areas 4 of lastic material are still warmthat is saturated with water-proofing maand sticky, t e particles 13will cling thereterial and then coated with plastic material to, but theparticles which fall outside of' which has wear-resisting material suchas these areas upon the cool, hard coating 2 will mineral -matterapplied to the outside surnotstick thereto but will fall off when the loface thereof. sheet is turned. As the sheet passes from The inventionwill be understood fromthe under the container 12 it may be caused todescription in connection with the accompass between pressure rolls 14,15 which will panying drawings in which serve to press the granularparticles 13 more Fig. 1 is a plan view of the roofing sheet; firmlyinto the plastic material 4. The in Fig. 2 is an edge view of same; andplastic material will preferably be applied to Fig. 3 represents in partmechanism showin shapes indicated in Fig. 1 and in such a ing how thearticle can be made. manner that an' uncoated marginal edge 16 In thedrawings, reference character 1 and the strips 17 of the coating 2 willbe designates a base of fibrous material which left exposed.

2 may be made from paper making stock or In applying the strip ofroofing material other fibrous materlal and may then be to a roof deck,it may be laid either horizonsaturated with liquid waterproofingmaterial tally or vertically or at an acute angle to such, for example,as tar, by passing the the edge of the roof. After the first sheet samethrough a bath of the waterproofing 1 has been laid along the roof,cementitious 1J1 material as is common and well known in material suchas hot tar or soft asphalt, for this art. The waterproofed sheet 1 maythen example, may be applied upon the uncoated have applied to one sidethereof a layer 2 of portions 3 and then a second strip laidthereplastic material such as pitch or asphalt, for .over with its loweredge in contact with the example, which may be applied in the hotexposed edge 16 of the coating layer 2 and an or liquid state in theusual or well known so on until the entire roof is covered. The mannerand then be allowed to cool and exposed strips 17 of superposed layersmay harden. This layer 2 will preferably be apbe made to lie in the sameline with each plied along one edge of the sheet 1 thereby other ortheycan be staggered.

. leaving a wide uncoated margin 3. The spots orareas '4 may be appliedin 35 After the coating 2 has been applied, cershapes other thanrectangular and the color tain sections or areas of the same may be ofthe mineral particles 13 should in all cases covered with or haveapplied thereto a coatbe such as to contrast with the color of the ing 4of plastic bituminous material such as coating 2. By the use of thesestrips an atasphalt, for example. In Fig. 3 is illustractive lookingroof can be made havin the 40 trated somewhat diagrammaticall a devicelines 16 and 17 of contrasting color wit the 5 by which the spots orportions of t e coatin mineral matter 13 so as to make patterns 2 mayhave the plastic material 4 applieof the desired sort. thereto insegregated areas. In this figure I claim: reference character 6designates a tank in 1. A strip of roofing material having a 45 whichthe plastic material 7 may be kept in layer of plastic waterproofingmaterial on a plastic or semi-liquid condition by being one side thereoffree from mineral surfackept hot in any convenient manner. A drum ingmaterial, portions of said plastic wa- 8 having segments or sections 9separated terproofingmaterial beingthickened by a from each other bylongitudinal grooves 10 second layer of plastic waterproofing ma- 5 dipsinto the plastic material 7 and revolvterialhomogeneously united withthe first 05 ing against the coating 2 of the sheet 1 as it layer, thethickened portions having wearpasses thereover in the direction of thearresisting material applied thereto. row, the plastic material isapplied to the 2. A strip of roofing material having a coatin 2 in theareas designated by refer layer of plastic material on one side thereof5 ence c aracter 4. The sheet then passes free from mineral surfacingmaterial, portions of said plastic material being covered with a layerof plastic material homogene-i base saturated with waterproofingmaterial,

a layer of plastic waterproofing material on one side thereof free frommineral surfacmg material, portions of said layer of like areas beinguniformly thickened by a second layer of plastic waterproofing materialhomogeneously united with the first layer and Wear-resisting materialpartially embedded in the surface of the thickened portions. I

4. A roofing strip consisting of a fibrous base saturated withwaterproofing material, a layer of plastic waterproofing materialapproximately one half the width of the strips, applied to one side andat one edge thereof'and free from mineral surfacing material, portionsof said layer of like areas being uniformly thickened by a second layerof plastic waterproofing material homogeneously united with the firstlayer resisting material partially embedded in the surface of thethickened portions.

5. A roofing strip consisting of a fibrous base saturated withwaterproofing material, a layer of plastic waterproofing material,approximately one half the width of the strips, applied to one side andat one edge thereof and free from mineral surfacing material, parallelportions of said layer of like areas being uniformly thickened by asecond layer of plastic waterproofing material homogeneously united withthe firstlayer and wear-resisting material partiall embedded in thesurface of the thickened and wearportions, the outer edge of thethickened portions being substantially fluslrw'itligthe i of like areasand of a length less than the width of said layer being uniformlythickened by a second layer of plastic waterproofing materialhomogeneously united withthe first layer and wear-resisting materialpartially embeddedin thickened portions.

7. The process which comprises applying plastic material to one side ofa roofing sheet, thickening portions of said plastic material byapplying thereto and homogeneously uniting therewith a second layer ofplastic material and applying wear-resisting material to said secondlayer while it is still in a plastic state.

8. The process which comprises applying plastic waterproofing materialto approximately one half of one side of a roofing strip at one edgethereof, thickening parallel rectangular portions of said plasticwaterproofing material by applying thereto and homogeneously unitingtherewith a second layer of plastiomate'rial and applying wearresistingmaterial to said second layer While it is still in a plastic state,

In testimony whereof I affix my signature.

MAURICE CATON.

the surface of the

